Explosive-engine cooler.



W. WOODWARD.

EXPLOSIVE ENGINE COOLER.

APPLICATION FILED NOT/.4, 1912.

1,081,880, Patented Dec. 16, 1913.

2 SHEETEPSHEET 1.

W. W OODWAR'D. EXPLOSIVE ENGINE COOLER.

APPLICATION FILED NOV. 4, 1912.

1,981,880. Patented Dec. 7' I 1N3.

05451 M zw/ my wv/w'a/ m WTLLIAM WOODWARD OF CHICAGO, ILLINOIS.

EXPLOSIVE-ENGINE COOLER.

Specification of Letters Patent.

Patented Dec. 16, 1913.

Application filed November 4, 1912. Serial No. 729,333

To all whom it may concern Be it known that I, VVILLIAM Noonwann, a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new anduseful Improvements in Explosive-Engine Coolers, of which the following is a specification.

My invention relates to improvements in internal combustion engines and more particularly to improvements in means of cooling for engines of this character.

The object of my invention is the produc tion of cooling means for internal combustion engines which will be durable and economical in construction and of high efficiency.

Other objects will appear hereinafter.

The invention consists in the combination and arrangements of parts hereinafter described and claimed.

.. The invention will be best understood by reference to the accompanying drawings forming a part of this specification, and in which,

Figure 1 is a sectional side elevation of an internal combustion engine embodying my invention, Fig. 2 is an end view of the engine, the upper end portion being shown in section, Fig.3 is a plan view of the air pipes included in the construction, detached, and Fig. 4 is an enlarged sectional detail taken on substantially line w:r of 3.

The preferred form of construction as illustrated in the drawings comprises an engine consisting of a plurality of cylinders 1 which are cast en bloc, the plate 2 upon which said cylinders are formed being bolted to the crank case 3 in which is mounted the usual crank shaft 4 which is connected in the usual manner with .the pistons of the cylinders 1. The exhaust ports of the cylinders 1 communicate with a manifold 5 which dlSellEtIfIQS into the outside atmosphere or into the muffler, where such is employed, through port 6. The intake port 6 communicates with manifold 5 which in turn communicates with the intake ports of the various cylinders.

Inclosingthe cylinders 1. is a casing 7 bolted as shown to the plate 2, the employment of easing 7 resulting in the formation of a ater jacket or compartment 8 around the cylinders 1. Said water jacket is accessible through a screw plug 9 through which the water may be introduced into said jacket to surround the cylinders 1 upon all sides except the lower ends thereof. The fittings of ports 6 are connected with the casing 7 through the medium of screw flanges 10 which form a tight connection therewith.

Arranged in the jacket 8 surrounding the cylinders 1 is anannular cooler composed of a plurality of pipes 11 the ends of which terminate in boxes or manifolds 12 and 13 as clearly illustrated in Figs. 3 and 4. The box 12 coi'ninuuicates through the medium of pipe 1% with the fitting of port 6, said pipe 14 terminating in an annular port 15 which surrounds the exhaust port 6 as clearly shown in Fig. 2. The member 13 communicates through the medium of a pipe 16 with the outside atmosphere. With this arrangement. it will be seen that in the operation of the engine the exhausting gases discharging from the port 6 will. induce a suction in the pipe 1-1 which will cause the circulation of air through the cooling pipes 11 and so that in the continuous operation of the engine a continuous circulation of air drawn from the outside atmosphere through the pipes 11 will effect the thorough cooling of the water in the water jacket 8 in which the pipes 11 are immersed. Thus the effectual cooling of the cylinders immersed in. the water contained in jacket 8 will be socurcd.

While l have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claim.

Having described my invention what I claim as new and desire to secure by Letters Patent is: l

The combination of an engine comprising a cylinder having an exhaust port; a Water jacket surrounding said cylinder; a plurality of air pipes arranged in said Water jacket encircling said cylinder, the correspending terminals 0'1 said pipes opening into the outside atmosphere; and a c0nneetion between the opposite ends of said pipes and said exhaust port whereby exhaust through said port induces a suction in the adjacent ends of said pipes, substantially as described in testimony whereof I have signed my name te this specification in the presence of two subscribing witnesses WILLIAM WQQDYVARD,

Witnesses:

Ti-ionms W. COLSON, JOSHUA R. H. Fons. 

